- Anyone who purchased a copy of FumeFX 3.x for Maya after January 1st, 2016 (inclusive) will get a free upgrade to FumeFX 4.0. Please send us email with your FumeFX 3.x serial number to receive a new one.
- FumeFX SL 3.x licenses are valid under FumeFX SL 4.0 regardless of their purchase date. Be aware that SL 4.0 will ONLY work with FumeFX 4.0, so users should not get the upgrade unless they are planning to upgrade their full FumeFX license at the same time.
- FumeFX shader for mental ray, VRay and Arnold does not require upgrade purchases.